NAD+ Treatment Options

The purpose of this study is: * To assess the neurological outcome in acute ischemic stroke patients treated with NTx®-265, when compared with patients given a placebo control. * To assess the safety and tolerability of NTx®-265 when given to acute ischemic stroke patients. Read Less

Excessive prolongation of the international normalized ratio (INR) occurs frequently in patients taking warfarin; in fact, about one in six INR values is above the desired range. Excessive prolongation of the INR is clinically important because the risk of bleeding approximately doubles for each one point increase in the INR beyond the usual therapeutic range. Thus, treatment strategies which rapidly and reliably lower an excessively prolonged INR into the desired range have the potential to reduce bleeding. When taken by patients with INR values between 4.5 and 10, a small dose of oral vitamin K (1 mg to 2.5mg) reduces the INR into the desired INR range in about 75% of cases within 24 hours of its administration. If warfarin is simply withheld, and no vitamin K is given, about 25% of patients will have an INR in the desired range at 24 hours. However, vitamin K is rarely given to such patients. In a recent survey carried out by our group, less than 20% of such patients would have been given low dose oral vitamin K by a group of physicians who regularly supervise warfarin therapy. The most common treatment for excessive prolongation of the INR is to simply withhold warfarin and allow the INR to fall into the therapeutic range. Although this strategy is effective its safety has never been adequately examined. In fact, recent evidence suggests that patients with INR values of more than 6.0 who are treated with simple warfarin withdrawal have a risk of major bleeding of 4% in the two weeks after they develop their prolonged INR. When asked why they did not give oral vitamin K to a non-bleeding patient who has an excessively prolonged INR, physicians generally give one of three reasons: (1)They are not convinced that oral vitamin K reduces bleeding. (2) They are concerned that oral vitamin K may cause thrombosis. (3) In contrast with simply withholding warfarin, giving oral vitamin K requires a patient to visit the physician, and the physician must have a supply of vitamin K. The investigators hypothesize that the routine practice of not administering oral vitamin K to patients with excessively prolonged INR values is causing patients to have major, life-threatening and fatal bleeds. To convince physicians that oral vitamin K should be administered to all non-bleeding patients with INR values of more than 4.5, the investigators propose a study which the investigators anticipate will demonstrate that oral vitamin K reduces bleeding, does not cause thrombosis, and can be administered at home without direct physician supervision. To accomplish these goals, the investigators propose a multinational, double-blind, placebo-controlled trial. The investigators will randomize patients with INR values between 4.5 and 10.0 to receive 1.25 mg of oral vitamin K or placebo and follow them for bleeding and thrombosis. Patients with INR values of more than 10.0 will receive a single 1.25 mg dose of oral vitamin K. Successful completion of this study will establish a treatment standard supported by clinical data which will, in turn, change the way that patients taking warfarin who present with an excessively prolonged INR are treated. Read Less

The goal of this study is 1) to develop a biomarker of of cartilage synthesis by determining if there is a relationship between changes in the status of knee cartilage and the amount of a biomarker called CTX-II in urine. 2) We will also characterize people who have experienced cartilage loss and/or reduced functional ability using performance tests and a questionnaire. 3) The administration of glucosamine in a beverage for six months will be used to promote the alteration in cartilage status and improve function in people with mild to moderate joint pain. A secondary goal will be to assess the effect of glucosamine on the skin in a small subset of women. Read Less

This study will be performed in approximately 132 women with anovulatory/oligoovulatory infertility. Read Less

The primary objective of this study is to determine the efficacy and onsets of action of single-dose fexofenadine hydrochloride 180 mg and montelukast sodium 10 mg relative to placebo. Secondary objectives are to compare the safety and efficacy of fexofenadine hydrochloride 180 mg, montelukast sodium 10 mg, and placebo Read Less

Compare the effect of a single dose of fexofenadine HCl 180 mg plus orange juice versus placebo plus orange juice on the change from baseline (pre-dose) in histamine skin flares. Read Less

To evaluate the single-dose and steady-state pharmacokinetics of desloratadine and fexofenadine in desloratadine slow metabolizers. To evaluate the safety and tolerability of desloratadine compared to fexofenadine following single and multiple oral doses administered to desloratadine slow metabolizers. Read Less

To compare the effects of fexofenadine HCl 180 mg, cetirizine 10 mg, and placebo on computerized scores derived from the Aeromedical Vigilance Task (AVT), a computerized objective measure of attention, accuracy and reaction time in healthy naval flight personnel. Specifically, the primary objective is to compare the AVT overall (average of the 18 blocks) mean change from baseline in total number of errors (commission errors + omission errors) between fexofenadine HCl and cetirizine 10 mg. Safety of these single-dose treatments also will be assessed. Read Less

To examine the relative potency, onset of action and duration of action of fexofenadine HCl 180 mg (ALLEGRA) and desloratadine 5 mg (CLARINEX) as compared to placebo on skin wheals and flares induced by histamine. Read Less

Examine the relative potency, onset of action and duration of action of fexofenadine HCl 180 mg (Allegra) and montelukast sodium 10 mg (Singulair) as compared to placebo on skin wheals and flares induced by seasonal allergen. Read Less

Methods of infertility treatment may involve in vitro fertilization or IVF. Though effective, IVF is complex and expensive. Methods using no gonadotropin hormone stimulation of the ovaries are being compared to mild stimulation doses. The goal of the research is to determine which of these if more suitable as a low cost approach for varying individual patients. Read Less

The product is being tested to see if exposure to light causes photoallergic reactions on the skin. Read Less